UIST – Imaging: Template Sequences
UIST observing programmes are set up under the UIST ORAC-OMP ORACOT . Your starting point will be the template sequences in the UIST library which contains the sequences described below.
UIST Non-Thermal Imaging Template MSBs
MSB | Contents | Description | DR Recipes Used |
5 Point Jitter | Target component UIST component DR component Observe sequence | Observations consist of a dark followed by one exposure at each of 5 telescope positions. Useful for brighter point sources. | BRIGHT_POINT_SOURCE JITTER_SELF_FLAT |
9 Point Jitter | Target component UIST component DR component Observe sequence | Observations consist of a dark followed by one exposure at each of 9 telescope positions. Useful for fainter point sources. | JITTER_SELF_FLAT |
N-colour Jitter | Target component UIST component DR component Observe sequence | Observations consist of a dark followed by a jitter set through multiple filters using the imaging iterator | JITTER_SELF_FLAT_NCOLOUR |
Quadrant Jitter | Target component UIST component DR component Observe sequence | Observations consist of a dark followed by one exposure at 4 telescope positions, one in each quadrant. Useful for extended sources of size less than one quad, or 60″ for the 0.12 camera. | QUADRANT_JITTER |
Extended 3×3 | Target component UIST component DR component Observe sequence | Observations consist of a dark followed by one exposure at 19 telescope positions, starting and ending at a sky offset. Useful for mapping extended sources smaller than about 2 arc minutes. | EXTENDED_3x3 |
Extended 5×5 | Target component UIST component DR component Observe sequence | Observations consist of a dark followed by one exposure at 51 telescope positions, starting and ending at a sky offset. Useful for mapping extended sources smaller than about 3 arc minutes. | EXPENDED_5x5 |
UIST Thermal Imaging Template MSBs
MSB | Contents | Description | DR Recipes Used |
L’ 0.12″/pix Nod4 | Target component UIST component DR component Observe sequence | Observations consist of a dark followed by one exposure at each of 4 telescope positions. Useful for brighter point sources. Note exposure set by camera and filter and should not be changed. | NOD_SELF_FLAT_NO_MASK |
L’ 0.12″/pix Nod8 | Target component UIST component DR component Observe sequence | Observations consist of a dark followed by one exposure at each of 8 telescope positions, diagonally placed on the array to avoid the lower-QE lower right quadrant. Useful for fainter point sources. Note exposure set by camera and filter and should changed. | NOD_SELF_FLAT_NO_MASK |
L’ 0.06″/pix Nod8 | Target component UIST component DR component Observe sequence | Same as above but with exposure and offsets scaled for the smaller pixels camera. | NOD_SELF_FLAT_NO_MASK |
M’ 0.12″/pix Nod8 | Target component UIST component DR component Observe sequence | Observations consist of a dark followed by one exposure at each of 8 telescope positions, diagonally placed on the array to avoid the lower-QE lower right quadrant. Useful for fainter point sources. Note exposure set by camera and filter and should not be changed. | NOD_SELF_FLAT_NO_MASK |
M’ 0.06″/pix Nod8 | Target component UIST component DR component Observe sequence | Same as above but with exposure and offsets scaled for the smaller pixels camera. | NOD_SELF_FLAT_NO_MASK |
Sky nod | Target component UIST component DR component Observe sequence | Alternate nods to sky for an extended target with sky subtraction – suitable for thermal imaging | NOD_SKY_FLAT_THERMAL |